3531420106523 has 4 divisors (see below), whose sum is σ = 3542560233360. Its totient is φ = 3520279979688.

The previous prime is 3531420106507. The next prime is 3531420106537. The reversal of 3531420106523 is 3256010241353.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3531420106523 - 2⁴ = 3531420106507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3531420102523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5570062943 + ... + 5570063576.

It is an arithmetic number, because the mean of its divisors is an integer number (885640058340).

Almost surely, 2^{3531420106523} is an apocalyptic number.

3531420106523 is a deficient number, since it is larger than the sum of its proper divisors (11140126837).

3531420106523 is a wasteful number, since it uses less digits than its factorization.

3531420106523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11140126836.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 3531420106523 its reverse (3256010241353), we get a palindrome (6787430347876).

The spelling of 3531420106523 in words is "three trillion, five hundred thirty-one billion, four hundred twenty million, one hundred six thousand, five hundred twenty-three".